Disk-harrow



(No Model.)

0. LA DOW.

DISK HARROW.

No. 360,352. Patented Mar. 29, 1887.

Fig.1

IIIHI HMIIIHHIH WITNESSES INVENTOR $460M. amiwlapow/ N. PETERS. Fhnlo-Lmwgmphcr. Wash! Inn.

' UNiran STATES PATENT rricn.

(.YHARIJHS LA DOV, OF ALBANY, NIMV YORK.

DlSK HARROW.

SPECIFICATION forming part of Letters Patent No. 360,352, dated March 29, 1887.

Ori inal app'icati-m filed January 3i, 1884. Divided and this application filed March 11 18%. Serial No. 194,867. (X0 model.)

To ctZZ whom it may concern:

Be it known that I, CHARLES L1 Dow, of Albany, in the State of New York, have invented certain new and useful Improvements in Wheel or Disk HHIIOWS, of which the f0l lowing is a specification.

The general object of my invention is to improve the construction and operation of har rows of this class. and the several features of the invention will fully appear from the following specification.

In the accompanying drawings, Figure 1 is a plan view; Fig. 2, a side elevation with the outside disks removed; Figs. 3 and at, detail views showing the sliding mechanism or de vices which areoperated when the gangs are caused to assume different angles relatively to each other. Fig. 5 is a detail cross-sectional view on theline 5 5 of Fig. l; and Figs. 6 and 7- are respectively side and plan detail views showing the pivotal and interlocking connections between the cross-bar of the harrow and the gang-beai'n.

In carrying out myinvention, thestructural details may of course be varied'by those skilled in the art, and I do not therefore limit myself to the specific organization shown,t-hough such a structure is a practical and suitable one.

The machine herein illustrated is identical with that shown in my prior patent, No. 338,982, granted March 30, 1886, the application for which was filed January 31, 188%, and of which this application is a continuing division. I hereby disclaim in this case any subject-matter claimed in that patent.

A represents the pole of the machine, and B B the cross-beam, which in this instance is formed of two sections, each of which is hinged at itsinnerend to the pole. The disk-gangs have their bearings in arms or standards projecting from the gang-beams O, which are pivotally connected with the cross-beams of the harrow at b. In the construction shown this pivotal connection is formed by swivel-bolts b,carried by the gang-beam and having bearings in the cross-bar. The gangs vibrate vertically upon the bearings thus afforded. I

c 0 represent stops on the cross-beam, which may be made to engage with the upper and lower sides of the gang-beams to hold the gangs rigidly relatively to the cross-beam or main frame of the harrow. If it is desired to permit that portion of a gang where the stop mechanism is applied to vibrate vertically upwardly, the upper stop 0 may be turned out ofengagcment with the gangbar; or, ifit is desired to permit the gang to vibrate frecl y dowir wardly, the lower stop 0 is turned out of en gagcmentwith the gang-bar. \Vheu both stops are disengaged from the beam, the gang is free to vibrate to any desired extent.

d is an anti-friction device or roller mounted on the prolongation of each spindle b,and receives the end-thrust of the gang. Between the cross-barand beam of each gang I provide an interlocking sliding connection,preferably on each side of the pivotal connection between the gang-beam and cross-bar. This feature is shown particularly in Figs. 6 and 7. A curved sector-plate, x, on each side of said pivotal connection is secured to the cross-bar and providcd with a raised edge or lip,beneath which a correspondingly shaped lip on a curved sector-plate, x, on the gang-beam interlocks. As the gang rocksupon its pivotal connection with the crossbcam these curved interlocking segmental guide-plates travel in contact with each other, and while permitting the vibration of the gang-beam relatively to the cross-bar maintain them in uniform relation to each other.

In the construction shown it will be perceived that the vertical vibration of the gangs takes place on a horizontal pin or pivot carried by the gang-beam and rocking in bearings in the cross-bar. This is a useful and practical construction, as it dispenses with any intervening standards or projecting arms between the cross-beam and gang-beam, thus affording a strong compact structure.

Links or rods connect the gangs through the medium of the hingesections of the crossbeam with a slide, E, moving in or on a track, 6, on the under side of the pole, and connected by a link, F, with a hand-lever pivoted on the pole, and provided with an ordinary detcnt, so that the slide may be locked in any desired position relatively to the pole. XVhen the de tent is released and the gangs are being angled relatively to each other, the slide moves upon its track, and when the parts have reached the position desired the detent is permitted to engage the rack and lock the slide in position.

The details of the slide and track are shown plainly in Figs. 3 and 4., and more elaborate description is unnecessary. The links which extend from the slide to the gangs constitute flexible connections which readily permit the angling of the gangs and the movement of the slide.

I hereby disclaim in this case any subjectmatter herein shown which is claimed in another division of the original application of January 31, 1884, which is patented as No. 338,982, as above mentioned, which last division was filed March 5, 1887, No. 229,861.

I claim as my invention 1 1. In a harrow, 'a draft-frame, two gangs of cutters hinged to the draft-frame, and a slide mounted beneath the pole and arranged to move -baekwardly and forwardly relatively thereto, in combination with links for connecting the slide and gangs.

2. In a harrow, a draft-frame, two gangs of cutters hinged to the draft-frame, a track or way, mounted on the pole, a slide mounted on said track and adapted to operate backwardly and forwardly on its track independent of the pole, and draft-links for connecting the slide with the gangs, in combination with means for controlling the position of said slide relative to its track.

to the draft-pole, a slide operating lengthwise 4:. In a harrow, a draft-pole, a frame eX- tending laterally therefrom, disk-gangs hinged to the frame, a track, c, affixed to the draftpole, and a slide, E, interlocking with said track, in combination with the links connecting the slide to the disk-gangs.

5. The combination of the main frame, the

gang-beam, and a horizontal pivotpin, on which the gang has its vertical vibration, interposed directly between the gang-beam and frame and affording a direct hinge-connection between the two.

6. The combination of the main frame, the gang-beam, a horizontal pivot-pin carried by the gang-beam and having a bearing directly in or on the frame or cross-bar.

7. The combination of the main frame, a disk-gang, a hinge-connection between the frame and gang, and an interlocking sliding connection, also interposed between the gang and frame.

8. The combination of a pole andcro'ssbar, a disk-gang, its gangbeam, and an interlocking sliding connection between the gang-beam and cross-bar, which holds them in proper relation to each other. v

In testimony whereof I have hereunto subscribed my name.

CHARLES LA DO\V.

Witnesses:

S. G. SPEIR, H. HATTON. 

